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            <h1><a href="index.html">Zero3 メモリオプティマイザによる <a href="../../neox/index.html">GPT-NeOx</a> の微調整</a></h1>
<p>このスクリプトは、<a href="../../neox/model.html">ゼロDPメモリ最適化機能を備えた複数のデバイス上でGPT-Neoxモデルのバイアスパラメータをトレーニングします</a>。</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">14</span><span></span><span class="kn">import</span> <span class="nn">datetime</span>
<span class="lineno">15</span>
<span class="lineno">16</span><span class="kn">import</span> <span class="nn">torch</span>
<span class="lineno">17</span><span class="kn">import</span> <span class="nn">torch.distributed</span>
<span class="lineno">18</span>
<span class="lineno">19</span><span class="kn">from</span> <span class="nn">labml</span> <span class="kn">import</span> <span class="n">experiment</span><span class="p">,</span> <span class="n">monit</span><span class="p">,</span> <span class="n">tracker</span>
<span class="lineno">20</span><span class="kn">from</span> <span class="nn">labml.configs</span> <span class="kn">import</span> <span class="n">option</span>
<span class="lineno">21</span><span class="kn">from</span> <span class="nn">labml.logger</span> <span class="kn">import</span> <span class="n">inspect</span>
<span class="lineno">22</span><span class="kn">from</span> <span class="nn">labml_nn.neox.samples.finetune</span> <span class="kn">import</span> <span class="n">PipelineParallelTrainerConf</span></pre></div>
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    </div>
    <div class='section' id='section-1'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-1'>#</a>
            </div>
            <p><a href="../../neox/samples/finetune.html">パイプラインパラレルトレーナーの設定を使用して</a>、Zero3 メモリオプティマイザーに適応させてください。</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">27</span><span class="k">class</span> <span class="nc">Configs</span><span class="p">(</span><span class="n">PipelineParallelTrainerConf</span><span class="p">):</span>
<span class="lineno">28</span>    <span class="n">rank</span><span class="p">:</span> <span class="nb">int</span>
<span class="lineno">29</span>    <span class="n">world_size</span><span class="p">:</span> <span class="nb">int</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-2'>
        <div class='docs doc-strings'>
            <div class='section-link'>
                <a href='#section-2'>#</a>
            </div>
            <h4>モデルのオプティマイザーを設定します。</h4>
<p><code  class="highlight"><span></span><span class="n">get_trainable_chunk</span></code>
シャードされたパラメータはから渡すことに注意してください。</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">32</span><span class="nd">@option</span><span class="p">(</span><span class="n">Configs</span><span class="o">.</span><span class="n">optimizer</span><span class="p">,</span> <span class="s1">&#39;Zero3Adam&#39;</span><span class="p">)</span>
<span class="lineno">33</span><span class="k">def</span> <span class="nf">_optimizer</span><span class="p">(</span><span class="n">c</span><span class="p">:</span> <span class="n">Configs</span><span class="p">):</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-3'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-3'>#</a>
            </div>
            
        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">39</span>    <span class="kn">from</span> <span class="nn">labml_nn.optimizers.adam_fp16</span> <span class="kn">import</span> <span class="n">AdamFP16</span>
<span class="lineno">40</span>    <span class="k">return</span> <span class="n">AdamFP16</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">model</span><span class="o">.</span><span class="n">get_trainable_chunk</span><span class="p">(),</span> <span class="n">lr</span><span class="o">=</span><span class="n">c</span><span class="o">.</span><span class="n">learning_rate</span><span class="p">)</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-4'>
        <div class='docs doc-strings'>
            <div class='section-link'>
                <a href='#section-4'>#</a>
            </div>
            <h4>Zero3 メモリオプティマイザーでモデルを作成</h4>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">43</span><span class="nd">@option</span><span class="p">(</span><span class="n">Configs</span><span class="o">.</span><span class="n">model</span><span class="p">,</span> <span class="s1">&#39;Zero3&#39;</span><span class="p">)</span>
<span class="lineno">44</span><span class="k">def</span> <span class="nf">_model</span><span class="p">(</span><span class="n">c</span><span class="p">:</span> <span class="n">Configs</span><span class="p">):</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-5'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-5'>#</a>
            </div>
            
        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">48</span>    <span class="kn">from</span> <span class="nn">labml_nn.scaling.zero3</span> <span class="kn">import</span> <span class="n">Zero3Layer</span><span class="p">,</span> <span class="n">Zero3Sequential</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-6'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-6'>#</a>
            </div>
            <p>微調整器がトレーニング可能なパラメーターを設定していることを確認するには</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">51</span>    <span class="n">_</span> <span class="o">=</span> <span class="n">c</span><span class="o">.</span><span class="n">fine_tuner</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-7'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-7'>#</a>
            </div>
            <p>レイヤーを以下のようにラッピングします。<code  class="highlight"><span></span><span class="n">Zero3Layer</span></code>
</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">54</span>    <span class="n">modules</span> <span class="o">=</span> <span class="p">[]</span>
<span class="lineno">55</span>    <span class="k">for</span> <span class="n">m</span> <span class="ow">in</span> <span class="n">monit</span><span class="o">.</span><span class="n">iterate</span><span class="p">(</span><span class="s1">&#39;Zero3&#39;</span><span class="p">,</span> <span class="n">c</span><span class="o">.</span><span class="n">layers</span><span class="p">):</span>
<span class="lineno">56</span>        <span class="n">modules</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">Zero3Layer</span><span class="p">(</span><span class="n">m</span><span class="o">.</span><span class="n">to</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">device</span><span class="p">),</span>
<span class="lineno">57</span>                                  <span class="n">c</span><span class="o">.</span><span class="n">rank</span><span class="p">,</span> <span class="n">c</span><span class="o">.</span><span class="n">world_size</span><span class="p">,</span> <span class="n">c</span><span class="o">.</span><span class="n">device</span><span class="p">,</span> <span class="n">c</span><span class="o">.</span><span class="n">dtype</span><span class="p">))</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-8'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-8'>#</a>
            </div>
            <p>シーケンシャルモデルの作成</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">60</span>    <span class="n">model</span> <span class="o">=</span> <span class="n">Zero3Sequential</span><span class="p">(</span><span class="n">modules</span><span class="p">)</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-9'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-9'>#</a>
            </div>
            <p></p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">63</span>    <span class="k">return</span> <span class="n">model</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-10'>
        <div class='docs doc-strings'>
            <div class='section-link'>
                <a href='#section-10'>#</a>
            </div>
            <h4>ランクのあるノードでトレーニングを実行します<code  class="highlight"><span></span><span class="n">rank</span></code>
。</h4>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">66</span><span class="k">def</span> <span class="nf">main</span><span class="p">(</span><span class="n">rank</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">world_size</span><span class="p">:</span> <span class="nb">int</span><span class="p">,</span> <span class="n">init_method</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s1">&#39;tcp://localhost:23456&#39;</span><span class="p">):</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-11'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-11'>#</a>
            </div>
            <p>PyTorch 分散プロセスグループを初期化</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">71</span>    <span class="k">with</span> <span class="n">monit</span><span class="o">.</span><span class="n">section</span><span class="p">(</span><span class="s1">&#39;Distributed&#39;</span><span class="p">):</span>
<span class="lineno">72</span>        <span class="n">torch</span><span class="o">.</span><span class="n">distributed</span><span class="o">.</span><span class="n">init_process_group</span><span class="p">(</span><span class="s1">&#39;nccl&#39;</span><span class="p">,</span>
<span class="lineno">73</span>                                             <span class="n">timeout</span><span class="o">=</span><span class="n">datetime</span><span class="o">.</span><span class="n">timedelta</span><span class="p">(</span><span class="n">seconds</span><span class="o">=</span><span class="mi">30</span><span class="p">),</span>
<span class="lineno">74</span>                                             <span class="n">init_method</span><span class="o">=</span><span class="n">init_method</span><span class="p">,</span>
<span class="lineno">75</span>                                             <span class="n">rank</span><span class="o">=</span><span class="n">rank</span><span class="p">,</span>
<span class="lineno">76</span>                                             <span class="n">world_size</span><span class="o">=</span><span class="n">world_size</span><span class="p">)</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-12'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-12'>#</a>
            </div>
            <p>現在のデバイスを設定</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">79</span>    <span class="n">device</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">device</span><span class="p">(</span><span class="sa">f</span><span class="s1">&#39;cuda:</span><span class="si">{</span><span class="n">rank</span><span class="si">}</span><span class="s1">&#39;</span><span class="p">)</span>
<span class="lineno">80</span>    <span class="n">torch</span><span class="o">.</span><span class="n">cuda</span><span class="o">.</span><span class="n">set_device</span><span class="p">(</span><span class="n">device</span><span class="p">)</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-13'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-13'>#</a>
            </div>
            <p>実験を作成</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">83</span>    <span class="n">experiment</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="s1">&#39;zero3_neox&#39;</span><span class="p">,</span> <span class="n">writers</span><span class="o">=</span><span class="p">{</span><span class="s1">&#39;screen&#39;</span><span class="p">,</span> <span class="s1">&#39;labml&#39;</span><span class="p">})</span>
<span class="lineno">84</span>    <span class="n">experiment</span><span class="o">.</span><span class="n">distributed</span><span class="p">(</span><span class="n">rank</span><span class="p">,</span> <span class="n">world_size</span><span class="p">)</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-14'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-14'>#</a>
            </div>
            <p>構成の作成</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">87</span>    <span class="n">conf</span> <span class="o">=</span> <span class="n">Configs</span><span class="p">()</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-15'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-15'>#</a>
            </div>
            <p>構成をロード</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">90</span>    <span class="n">experiment</span><span class="o">.</span><span class="n">configs</span><span class="p">(</span><span class="n">conf</span><span class="p">,</span> <span class="p">{</span>
<span class="lineno">91</span>        <span class="s1">&#39;model&#39;</span><span class="p">:</span> <span class="s1">&#39;Zero3&#39;</span><span class="p">,</span>
<span class="lineno">92</span>        <span class="s1">&#39;optimizer&#39;</span><span class="p">:</span> <span class="s1">&#39;Zero3Adam&#39;</span><span class="p">,</span>
<span class="lineno">93</span>
<span class="lineno">94</span>        <span class="s1">&#39;device&#39;</span><span class="p">:</span> <span class="n">device</span><span class="p">,</span>
<span class="lineno">95</span>        <span class="s1">&#39;rank&#39;</span><span class="p">:</span> <span class="n">rank</span><span class="p">,</span>
<span class="lineno">96</span>        <span class="s1">&#39;world_size&#39;</span><span class="p">:</span> <span class="n">world_size</span><span class="p">,</span>
<span class="lineno">97</span>
<span class="lineno">98</span>        <span class="s1">&#39;learning_rate&#39;</span><span class="p">:</span> <span class="mf">3e-4</span><span class="p">,</span>
<span class="lineno">99</span>        <span class="s1">&#39;max_seq_len&#39;</span><span class="p">:</span> <span class="mi">128</span><span class="p">,</span>
<span class="lineno">100</span>        <span class="s1">&#39;batch_size&#39;</span><span class="p">:</span> <span class="mi">16</span><span class="p">,</span>
<span class="lineno">101</span>    <span class="p">})</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-16'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-16'>#</a>
            </div>
            <p>実験を始める</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">104</span>    <span class="k">with</span> <span class="n">experiment</span><span class="o">.</span><span class="n">start</span><span class="p">():</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-17'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-17'>#</a>
            </div>
            <p>モデルを初期化します。これをループの前に行って、ログをクリーンアップしてください。</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">106</span>        <span class="n">_</span> <span class="o">=</span> <span class="n">conf</span><span class="o">.</span><span class="n">model</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-18'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-18'>#</a>
            </div>
            <p>モデルのトレーニング</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">109</span>        <span class="k">for</span> <span class="n">epoch</span> <span class="ow">in</span> <span class="n">monit</span><span class="o">.</span><span class="n">loop</span><span class="p">(</span><span class="n">conf</span><span class="o">.</span><span class="n">epochs</span><span class="p">):</span>
<span class="lineno">110</span>            <span class="n">conf</span><span class="o">.</span><span class="n">train_epoch</span><span class="p">()</span>
<span class="lineno">111</span>            <span class="n">tracker</span><span class="o">.</span><span class="n">new_line</span><span class="p">()</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-19'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-19'>#</a>
            </div>
            <p></p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">115</span><span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s1">&#39;__main__&#39;</span><span class="p">:</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-20'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-20'>#</a>
            </div>
            <p>マシン構成をログに記録する</p>

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">117</span>    <span class="n">inspect</span><span class="p">([</span><span class="n">torch</span><span class="o">.</span><span class="n">cuda</span><span class="o">.</span><span class="n">get_device_name</span><span class="p">(</span><span class="n">i</span><span class="p">)</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">torch</span><span class="o">.</span><span class="n">cuda</span><span class="o">.</span><span class="n">device_count</span><span class="p">())])</span>
<span class="lineno">118</span>    <span class="n">inspect</span><span class="p">(</span>
<span class="lineno">119</span>        <span class="n">n_gpus</span><span class="o">=</span><span class="n">torch</span><span class="o">.</span><span class="n">cuda</span><span class="o">.</span><span class="n">device_count</span><span class="p">(),</span>
<span class="lineno">120</span>        <span class="n">mpi</span><span class="o">=</span><span class="n">torch</span><span class="o">.</span><span class="n">distributed</span><span class="o">.</span><span class="n">is_mpi_available</span><span class="p">(),</span>
<span class="lineno">121</span>        <span class="n">nccl</span><span class="o">=</span><span class="n">torch</span><span class="o">.</span><span class="n">distributed</span><span class="o">.</span><span class="n">is_nccl_available</span><span class="p">(),</span>
<span class="lineno">122</span>    <span class="p">)</span>
<span class="lineno">123</span>
<span class="lineno">124</span>    <span class="n">n_gpu</span> <span class="o">=</span> <span class="n">torch</span><span class="o">.</span><span class="n">cuda</span><span class="o">.</span><span class="n">device_count</span><span class="p">()</span></pre></div>
        </div>
    </div>
    <div class='section' id='section-21'>
        <div class='docs'>
            <div class='section-link'>
                <a href='#section-21'>#</a>
            </div>
            <p>GPU ごとにプロセスを開始します。複数のコンピューターを使用している場合は、別のランチャーが必要になります</p>。

        </div>
        <div class='code'>
            <div class="highlight"><pre><span class="lineno">127</span>    <span class="n">torch</span><span class="o">.</span><span class="n">multiprocessing</span><span class="o">.</span><span class="n">spawn</span><span class="p">(</span><span class="n">main</span><span class="p">,</span> <span class="n">args</span><span class="o">=</span><span class="p">(</span><span class="n">n_gpu</span><span class="p">,),</span> <span class="n">nprocs</span><span class="o">=</span><span class="n">n_gpu</span><span class="p">,</span> <span class="n">join</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span></pre></div>
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